Cement-spreading machine.



No. 893,168. I 'PATENTED JULY 14, 1908.

I. HEWITT. CEMENT SPREADING MACHINE.

APPLICATION FILED APR.25, 1907. RENEWED MARIN, 1908.

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ISAAC HEWITT, OF VICTORIA, BRITISH COLUMBIA, CANADA.

GEMENT-SPREADING MACHINE.

I No.893,168.

Specification of Letters Patent.

Patented July 14, 1908.

' Application filed Apri1'25, 1907, Serial N 0. 370,221. Renewed March 18, 1908. Serial No. 420,881.

To alt whom it may concern:

Be 1t known that I, ISAAC HEWITT, citizen f the Dominion of Canada, residing at Vicwise movable on their axles 8 and 9 so that.

toria, in the Province of British Columbia, Canada, have invented anew and useful Improvement in Cement Spreading Ma- I chines, of which the following'is a specification.

This invention relates to a machine designed for spreading and surfacing cement 0W3; a flat horizontal surfacelsuch as a sidea.--.. .K-

The machine is fully described in the-following speclfication reference being made to the drawings by which itis accompanied, in

which:

Figure 1 is a longitudinal section through the'machine on the line A A in Fig. 2, and Fig. 2,'a plan of the machine. i

The essential feature of the machine consists of a heavy drag beam 2 loosely hung by means of chains 3'from a truck frame 4 carried byfianged' wheels 6'on a light track of any suitable character such as the curb-- boards 5 which limit the Width of the sidewalk or section over: which it is desired the cement shall be spread. When Ispeak of the drag beam 2 being loosely hung etc. I desire this expression understood. to mean any suspension of the drag beam whereby the same will ,be relatively loose as contradistinguished fr 1 being held in a stationary bearing frame.

The dra beam 2 may be shod with metal on its un er side and is furnished 0n the forward sidewith projecting spreader mem-.

bers 7. The spreader members 7 serve, as

the beam is moved from side to side, to

spread the aterial evenly over the course.

It is loosely hung from the frame 4 in such a the drag beam may be liftedclear of the sur-.

face when desired. 1 p v The wheels 6 of the truck frame are endthe gage of the wheel flanges may be varied to suit varying widths of sidewalk and the wheels are pressed to the outer limit of such endwise movement by li ht springs 10 between the hubs of the whee s and the adjacent side frame of the truck. One of the.

axles 18 is fixed and its wheels rotate on its ends but the other 9 'is rotatable in bearings in the truck frame and its Wheels are secured against rotation on it by means of feathers 15 which will allow the wheels to move endwise on the axle while rotating the axle as themachine is moved forward on its wheels. The object of this is to rovide the meansfor effecting the lateral reclprocation of the drag beam from the axle 9 as the machine is moved backward or forward on the tracks. This lateral reciprocation is effected by a crankpin 20 secured on the end of a short shaft 21 supported in bearings 22 from the truck frame, and this shaft 21 is rotated by a bevel wheel 23 secured on the axle 9 and meshing with a pinion 24 secured on the shaft 21-. A

rod 25 connects the crank pin 20 withan attachment 26 secured to the drag beam the attachment26 beingprovidedwithaseri'esof in holes sothat the rod '25 may be connecte at different distances from the end of the beam 2 so as to cause the same to reciprocate unevenly and be projected a greater distance at one side of the track than at the other during recifprocation, as conditions may require, as 'or' instance where itis necessary to make house connections to the side-walk. In. other j words the-rod 25 may beadju'stably connected to the beam 2 by'having its connecting pin inserted many of the pin apertures of the member 26 to throw the beam 2 to one side or the other of the central line, of draft of the truck.

Means may be provided whereby the weight of the drag beam on the" surface over which it is designed to operate may be varied. This may be done either by adding weight to the beam itself or preferably by hanging weights 17 on the chains 3 as shown by dot] and dash lines in the figures.

In'the operation of the machine the cement mixture being delivered in front of it, the machine is ulled or otherwise moved forward in the direction of the arrow, the lateral reciprocation of the beam 2 will, by means of the forwardly projecting members 7, distribute the cement over the desired width and the passage of the heavy drag beam over the distribute cement will surfaceit smooth .to the level of the curb-boards on which its weight rests. The loose manner in which the beam is connected by the chains- 3 to the truck frame 4 while permitting free reciprocation of the beam does not confine it to rigid lines of movement. When a sidewalk connection is to be made the point of attachment of the rod to the beam 2 may be shifted to throw the beam laterally toward the connection.

Having now particularly described my invention and the manner of its use I hereby declare'that what I claim as new and desire to be rotected in by Letters Patent is:

1. i n a cement spreading machine, a dra beam loosely sus ended from a wheele frame and means for laterally reciprocating said drag beam.

2. In a cement spreading machine, a drag beam loosely suspended from a wheeled carria e, members forwardly projecting from sai drag beam, and means for laterally reciprocating the drag beam.

3. In a cement spreading machine, a dra beam loosely sus ended from a wheele frame and means for laterally reciprocatin the drag beam by the forward movement 0 the wheeled frame.

4. In a cement spreading machine, a dra beam loosely suspended athwart a wheele frame, members forwardly projecting from such drag beam, means for laterally reciprocating the dra beam from the axle of one of the carrying w eels, and means for lifting the drag beam. a

5. In a cement spreading machine, a dra beam loosely suspended from a wheele frame, means for laterally reciprocating said drag beam, and means for throwing such lateral reciprocation to one side or the other of the middle line of movement of the wheeled frame.

6. In a cement spreading machine, the drag beam 2 suspended by chains 3 from the wheeled frame 4, the axles 8 and 9' on which the wheels are endwise movable, the springs 10 checking such movement, the feather 15 by which the axle 9 is rotatable with its wheels, the shaft 21, the gears 23 24, rotating said shaft the crank 20, connecting rod 25 by which the beam 2 is laterally reciprocated, the lever 1 1 and chain 14 by which said beam is lifted.

7. In a cement spreading machine, a dra beam loosely suspended from a wheeled frame, and means adjustably connected with the beam for laterally reciprocating the drag beam, substantially as shown and described.

8. In a cement spreading machine, a dra beam loosely suspended from a wheelec frame, and means adj ustably connected with the drag beam for laterally reciprocating the drag beam by the forward movement of the wheeled frame, substantially as shown and described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

ISAAC HEWITT.

Witnesses:

ROWLAND BRITTAIN, CLIVE S. OARMAN. 

